10102120199489 has 2 divisors, whose sum is σ = 10102120199490. Its totient is φ = 10102120199488.

The previous prime is 10102120199473. The next prime is 10102120199497. The reversal of 10102120199489 is 98499102120101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5758368115600 + 4343752083889 = 2399660^2 + 2084167^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102120199489 - 2⁴ = 10102120199473 is a prime.

It is a super-3 number, since 3×10102120199489³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (10102120199459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051060099744 + 5051060099745.

It is an arithmetic number, because the mean of its divisors is an integer number (5051060099745).

Almost surely, 2^{10102120199489} is an apocalyptic number.

It is an amenable number.

10102120199489 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102120199489 is an equidigital number, since it uses as much as digits as its factorization.

10102120199489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 10102120199489 in words is "ten trillion, one hundred two billion, one hundred twenty million, one hundred ninety-nine thousand, four hundred eighty-nine".